Cyclophotocoagulation with the transscleral contact red 670‐nm diode laser in the treatment of glaucoma

• Published in: Acta ophthalmologica (Oxford, England) Vol. 86; no. 5; pp. 558 - 564
• Main Authors: Raivio, Virpi E., Puska, Päivi M., Immonen, Ilkka J. R.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-08-2008
• Subjects: Aged; Aged, 80 and over; Ciliary Body - surgery; Exfoliation Syndrome - physiopathology; Exfoliation Syndrome - surgery; Female; Follow-Up Studies; glaucoma; Glaucoma, Neovascular - physiopathology; Glaucoma, Neovascular - surgery; Glaucoma, Open-Angle - physiopathology; Glaucoma, Open-Angle - surgery; Humans; Intraocular Pressure - physiology; Laser Coagulation; Lasers, Semiconductor - therapeutic use; Male; Middle Aged; red 670‐nm laser; Retrospective Studies; Sclera; Tonometry, Ocular; transscleral contact cyclophotocoagulation; Treatment Outcome
• ISSN: 1755-375X; 1755-3768
• DOI: 10.1111/j.1600-0420.2007.01090.x

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Purpose:  To retrospectively evaluate the results of cyclophotocoagulation (CPC) with the transscleral contact red 670‐nm diode laser in treating glaucoma.
Methods:  Cyclophotocoagulation was performed in 60 eyes of 60 patients with a mean age of 74 ± 11 years (range 49–90 years). The treatment was delivered via a fibre‐optic probe. The power per application was 430 mW. Exposure time was 10 seconds.
Results:  The mean overall follow‐up time after the initial CPC was 26 ± 20 months (range 3–75 months). Preoperative intraocular pressure (IOP) was 27 ± 11 mmHg (n = 60). After one or more CPC treatments, mean IOP decreased to 20 ± 7 mmHg (n = 51) at 1 month, 19 ± 5 mmHg (n = 45) at 3 months, 18 ± 5 mmHg (n = 29) at 6 months, 19 ± 7 mmHg (n = 22) at 1 year, 18 ± 7 mmHg (n = 16) at 2 years, 14 ± 4 mmHg (n = 8) at 3 years, and 18 ± 6 mmHg (n = 60) at the last follow‐up. An IOP of 8–21 mmHg or a > 30% decrease in IOP was obtained in 33 of 41 eyes (80%) with baseline IOP > 21 mmHg at the last follow‐up. Hypotonia (IOP < 8 mmHg) did not develop in any of the eyes studied.
Conclusions:  Cyclophotocoagulation with the red 670‐nm diode laser is an effective and well tolerated means of treating glaucoma.